| 摘要 |
A heat exchanger is described such as for cooling air by using water, particularly for use as an intercooler in an internal combustion engine. The heat exchanger has an elongate and preferably cylindrical core assembly housed within a shell. The core assembly has a plurality of spaced apart tubes extending between a first inlet, for introducing the air into the tubes, and a first outlet, for exit of the air from the tubes; a plurality of flow means disposed between and in thermal contact with the tubes, the flow means adapted to pass water across the core assembly generally at right angles to the air flow to transfer heat between the tubes and the water; and baffles so that water enters the core assembly by a second inlet, propagates through the core assembly generally in the direction of the air flow axis, wherein the baffles cause the water to move along in a tortuous path, along which the water absorbs heat from the tubes to cool the air. Preferably, the baffles are alternatingly disposed along opposite sides of the core assembly, the baffles being of generally semicircular shape and configured to sealingly engage with the shell so as to define a plurality of adjacent longitudinal sections along the length of the core assembly arranged so that the water is able to move between respective adjacent longitudinal sections only on the side of the core assembly opposite to a respective baffle.
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